Voltage control in LV networks: An initial investigation

Andreas Procopiou, C. Long, L.F. Ochoa

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    The installation of small-scale photovoltaic (PV) systems in European low voltage (LV) networks is continuously increasing given the attractive incentives adopted by countries such as the UK and Germany. In many cases, these installations are clustered in the same feeder or LV network, potentially resulting in voltage rise issues. To address this in a flexible way, here it is proposed the real-time intelligent control of LV on-load tap changer (OLTC)-fitted transformers to regulate voltages at the LV feeders. The performance of the proposed control logic is investigated adopting remote voltage monitoring of the end points as well as estimated values. The proposed control logic is applied to a real UK LV network considering one-minute simulations for a day. The results of both the monitoring and estimation-based approaches are compared for different PV penetrations. The control logic with remote monitoring successfully kept voltages of customers within the EN50160 standard. A strong performance was also shown when using estimated values. This highlights the potential applicability of such an approach.
    Original languageEnglish
    Title of host publicationProceedings of IEEE PES Innovative Smart Grid Technologies ISGT Europe 2014
    Number of pages6
    Publication statusPublished - Oct 2014
    EventIEEE PES Innovative Smart Grid Technologies ISGT Europe 2014 - Istanbul Technical University (ITU)
    Duration: 12 Oct 201415 Oct 2014


    ConferenceIEEE PES Innovative Smart Grid Technologies ISGT Europe 2014
    CityIstanbul Technical University (ITU)


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